Method and system for controlling secondary air for internal combustion
engine
    1.
    发明授权
    Method and system for controlling secondary air for internal combustion engine 失效
    内燃机二次空气控制方法及系统

    公开(公告)号:US5285639A

    公开(公告)日:1994-02-15

    申请号:US911628

    申请日:1992-07-10

    摘要: Secondary air is supplied to a position upstream of a catalyst disposed in an exhaust passage of an engine. An oxygen sensor is disposed between a secondary air supply portion of the exhaust passage and the catalyst. The supply amount of the secondary air is feedback controlled so that the oxygen concentration in the exhaust gas detected by the oxygen sensor approaches a target value corresponding to a theoretical air/fuel ratio. A second oxygen sensor for air/fuel ratio control is disposed upstream of the secondary air supply portion. Air/fuel ratio feedback control adjusts the air/fuel ratio of air entering the engine so that the oxygen concentration at the second oxygen sensor approaches the same target value as at the other oxygen sensor.

    摘要翻译: 二次空气被供给到设置在发动机的排气通路内的催化剂上游的位置。 氧传感器设置在排气通道的二次空气供应部分和催化剂之间。 二次空气的供给量被反馈控制,使得由氧传感器检测的废气中的氧浓度接近对应于理论空燃比的目标值。 用于空/燃比控制的第二氧传感器设置在二次空气供应部分的上游。 空气/燃料比反馈控制调节进入发动机的空气的空气/燃料比,使得第二氧传感器处的氧气浓度接近与另一氧传感器相同的目标值。

    Education system suitable for group learning
    3.
    发明授权
    Education system suitable for group learning 失效
    适合小组学习的教育制度

    公开(公告)号:US06915104B2

    公开(公告)日:2005-07-05

    申请号:US10096857

    申请日:2002-03-14

    CPC分类号: G09B5/02

    摘要: An education system includes a network, individual learning terminals, a group learning terminal and a learning management server. The individual learning terminals are connected with the network and are provided for individual learning of students. The group learning terminal is connected with the network and provided for group learning of a group of the students. The learning management server is connected with the network to provide first education modules for the individual learning to the individual learning terminals and second education modules for the group learning to the group learning terminal.

    摘要翻译: 教育系统包括网络,个人学习终端,组学习终端和学习管理服务器。 个人学习终端与网络连接,提供给学生个人学习。 集体学习终端与网络连接,为一组学生提供群体学习。 学习管理服务器与网络连接,为个人学习终端提供个人学习的第一教育模块和群组学习终端的第二教育模块。

    Method and apparatus for controlling the air-fuel ratio of an internal
combustion engine
    4.
    发明授权
    Method and apparatus for controlling the air-fuel ratio of an internal combustion engine 失效
    用于控制内燃机的空燃比的方法和装置

    公开(公告)号:US6035839A

    公开(公告)日:2000-03-14

    申请号:US982071

    申请日:1997-12-01

    CPC分类号: F02D41/1455 F02D41/068

    摘要: An object of the present invention is to be able to correct for deviation of an actual air-fuel ratio from a point for satisfactory purification performance of an exhaust gas purification catalytic converter, during an interval from immediately after start up until an air-fuel ratio sensor and an exhaust gas purification catalytic converter attain a stable condition. To achieve this, a control constant in an air-fuel ratio feedback control is set and altered during an interval from immediately after start up until the air-fuel ratio sensor and the exhaust gas purification catalytic converter attain a stable condition. In this way, the actual air-fuel ratio can be shifted, and hence the deviation of the actual air-fuel ratio from the point for satisfactory purification performance of the exhaust gas purification catalytic converter during the interval from immediately after start up until the air-fuel ratio sensor and the exhaust gas purification catalytic converter attain a stable condition, can be corrected. Consequently, the situation immediately after start up where the actual air-fuel ratio deviates from the target air-fuel ratio, attributable to the air-fuel ratio sensor and the exhaust gas purification catalytic converter being in an unstable condition, can be suppressed. Therefore the purification efficiency of the exhaust gas purification catalytic converter can be kept high.

    摘要翻译: 本发明的目的是能够在从启动之后的间隔到空燃比的间隔期间校正实际空燃比与排气净化催化转化器的令人满意的净化性能的点的偏差 传感器和排气净化催化转化器达到稳定的条件。 为此,空燃比反馈控制中的控制常数在启动后直到空燃比传感器和废气净化催化转换器达到稳定状态的间隔内被设定和改变。 以这种方式,实际的空燃比可以偏移,因此实际的空燃比与排气净化催化转化器的净化性能令人满意的点之间的距离从启动之后到空气 - 燃料比传感器和排气净化催化转化器达到稳定的条件,可以纠正。 因此,可以抑制由于空燃比传感器和排气净化催化剂处于不稳定状态而导致的实际空燃比偏离目标空燃比的起动之后的状态。 因此,废气净化催化转化器的净化效率可以保持较高。

    Apparatus and a method for controlling fuel supply to engine
    5.
    发明授权
    Apparatus and a method for controlling fuel supply to engine 失效
    用于控制向发动机供油的装置和方法

    公开(公告)号:US5483940A

    公开(公告)日:1996-01-16

    申请号:US256084

    申请日:1994-06-29

    摘要: A basic discharge QK Of a fuel pump is determined based on an engine load and an engine rotational speed, and further a correction amount QG for correcting the basic discharge QK based on comparison of an actual fuel pressure PT with a target pressure Po is learnt for every driving conditions. Then, the basic discharge QK is corrected with the correction amount QG, whereas in a transient condition, the basic discharge QK is corrected with a transient correction amount QT set on the basis of a variation rate .DELTA.PT Of the fuel pressure PT. Thus, it is possible to ensure that an amount of fuel required by an engine is surely supplied without excess fuel supply from the fuel pump.

    摘要翻译: PCT No.PCT / JP93 / 01627 Sec。 371日期:1994年6月29日 102(e)1994年6月29日PCT 1993年11月9日PCT。基于发动机负荷和发动机转速确定燃料泵的基本排出量QK,并且进一步校正基本排出量的校正量QG 基于实际燃料压力PT与目标压力Po的比较的QK被学习用于每个行驶条件。 然后,用校正量QG校正基本放电QK,而在瞬态条件下,基于燃料压力PT的变化率DELTA PT设定的瞬时校正量QT校正基本放电QK。 因此,可以确保发动机所需的燃料量确实地被供给而没有从燃料泵的多余的燃料供给。

    Apparatus and method for controlling heater of air-fuel ratio sensor in internal combustion engine
    6.
    发明授权
    Apparatus and method for controlling heater of air-fuel ratio sensor in internal combustion engine 失效
    内燃机空燃比传感器加热器控制装置及方法

    公开(公告)号:US06188049B1

    公开(公告)日:2001-02-13

    申请号:US09232688

    申请日:1999-01-19

    申请人: Masanobu Osaki

    发明人: Masanobu Osaki

    IPC分类号: H05B102

    CPC分类号: H05B1/0236 H05B2203/027

    摘要: An initial power feed quantity to be provided at the start to an electric heater equipped to an air-fuel ratio sensor is set corresponding to the temperature of a sensor element, and at the same time, the increase control time for increasingly changing the power feed quantity from said initial power feed quantity to the maximum power feed quantity is set corresponding to the temperature of the sensor element, and according to said initial power feed quantity and said increase control time, the power feed quantity to said electric heater is increased gradually from the start.

    摘要翻译: 设置在配置到空燃比传感器的电加热器的开始处的初始供电量设定为与传感器元件的温度对应,同时,增加控制时间,用于不断变化供电 从所述初始供电量到最大供电量的量设定为与传感器元件的温度相对应,并且根据所述初始供电量和所述增加控制时间,对所述电加热器的供电量逐渐从 开始。